6 (a) In the figure () given below, CD Il LA and DE Il AC. Find the le

1.	6 (a) In the figure () given below, CD Il LA and DE Il AC. Find the length of CL if BE=4cm and EC = 2 cm.(b) In the figure (ii) given below, <D = ZE and DB-EC. Prove that ABC is anisosceles triangle.
Answer» Consider triangle ABC in which BD is perpendicular to AC and EC perpendicular to AB. in triangle ABCangle D = angle E = 90 degree ( angle D and angle E are perpendicular to AC & AB) (GIVEN) AD/DB = AE/EC (GIVEN)==> BD = EC.And AB = AC.therefore triangle ABC is an isoceles triangle how they are perpendicular? this is based on parallel

6 (a) In the figure () given below, CD Il LA and DE Il AC. Find the length of CL if BE=4cm and EC = 2 cm.(b) In the figure (ii) given below, <D = ZE and DB-EC. Prove that ABC is anisosceles triangle.

Answer»

Consider triangle ABC in which BD is perpendicular to AC and EC perpendicular to AB.

in triangle ABCangle D = angle E = 90 degree ( angle D and angle E are perpendicular to AC & AB) (GIVEN)

AD/DB = AE/EC (GIVEN)==> BD = EC.And AB = AC.therefore triangle ABC is an isoceles triangle

how they are perpendicular?

this is based on parallel